Nikolai Bogolyubov
Ognev, chief of Sovier air defence
Sofya Sokolova
Galina, Ognev's sister
Boris Livanov
Karl Runge, engineer
Nikolay Podgorny
Professor Runge
Lev Fenin
General Vahr
V. Lavrentyev
Colonel Massalskiy
Aleksandr Antonov
Chief of aviation
Georgy Bobynin
Staff captain Blagonadyozhnyh
Konstantin Chugunov
Master Akim Ivanovich
